Linear motion guide unit with means for keeping cage against wandering.

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EP 1 826 425 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	15.04.2009 Bulletin 2009/16

(43)	Date of publication A2:
	29.08.2007 Bulletin 2007/35

(21)	Application number: 07250568.8

(22)	Date of filing: 13.02.2007

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International Patent Classification (IPC):

F16C 29/04^(2006.01)

F16C 33/54^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR MK RS

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Priority:

28.02.2006 JP 2006053403

(71)	Applicant: Nippon Thompson Co., Ltd.
	Minato-ku, Tokyo (JP)

(72)	Inventor:
	Kakei, Shigeki, c/o Nippon Thompson Co. Ltd. Mino-shi, Gifu-ken 501-3763 (JP)

(74)	Representative: Jenkins, Peter David et al
	Page White & Farrer Bedford House John Street London WC1N 2BF John Street London WC1N 2BF (GB)

(54)	Linear motion guide unit with means for keeping cage against wandering.

(57) A liner motion guide unit has a means (20) to keep a cage (3) against wandering, in which a pinion (4) is made up of holder halves that are adapted to squeeze each other against the cage (3) to make sure of keeping a pinion (4) in place with accuracy. The means (20) for keeping the cage (3) against wandering is comprised of a pinion holder (10) fitting into a window cut in the cage (3), racks (5,6) lying on sides (17,18) of the guideway members (1,2), one to each side, and a pinion (4) provided with teeth mating with the racks (5,6) and installed in the cage (3) for rotation. The pinion holder (10) is made up of holder halves, any one of which lies on any one side of the cage (3) at a marginal edge of the cage (3) at the same marginal edge of the window. The holder halves have sidewise extensions to firmly squeeze the cage (3) between them along the marginal edge of the window.

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